You must lock the injection pump hub with its specific locking pin (e.g., Bosch tool # 0 986 680 030 or equivalent) before installing the gear/sprocket. The pump's internal timing is absolutely critical.
Failing to do this correctly will result in incorrect fuel injection timing, causing poor running, lack of power, or valves hitting pistons.
Replace the Timing Belt System: Since you must remove the timing belt to access the pump, it is mandatory to install a complete new timing belt kit (belt, tensioner, idler rollers). Reusing the old belt risks a later failure, which could destroy the engine.
Avoid Contamination:
DO NOT allow dirt to enter the pump's fuel ports. Use clean plugs/caps.
DO NOT turn or rotate the pump shaft by hand without the locking pin in place, as this can damage internal components.
Before final connection, prime the low-pressure fuel system to avoid the pump running dry.
Coding and Adaptation: After installation, you cannot simply start the engine. You must use a professional diagnostic tool (e.g., VCDS, ODIS) to:
Perform the "Fuel Delivery Valve Adaptation" (often in the ECU's basic settings). This calibrates the ECU to the new pump's flow characteristics.
Clear any stored fault codes.
Without this step, the engine may run poorly, with low power and high emissions.
Bolt Torque: All bolts, especially the pump mounting bolts and sprocket bolt, must be torqued to the exact specification in a specific sequence (typically in Newton meters, Nm). Over- or under-torquing can cause leaks, misalignment, or failure.
Where to buy:
Rsolid is a professional manufacturer of diesel engine system components, providing high-quality and durable engine parts for different brands of engines, or producing fuel injectors and diesel pumps according to your requirements. The company is positioned as a professional and excellent supplier of automotive parts for foreign trade, including high-quality fuel injectors and diesel pumps. With years of international market experience, Rsolid has become a reliable partner for global customers seeking authentic Detroit products and comprehensive value-added services. The company is firmly committed to quality assurance, typically supported by international certifications commonly found in the automotive parts industry, ensuring that all parts undergo rigorous flow, pressure resistance, and leak integrity testing before being sold. Rsolid's business model typically includes maintaining a diverse and comprehensive inventory of OEM and high-end aftermarket parts, and offering cross compatible options to meet a wide range of applications and global customers from individual workshops to large fleet operators. If you are looking for diesel injectors or OEM engine diesel pumps, please feel free to contact us at any time .
